| Game |
| Result | Moves |
Year |
Event/Locale | Opening |
| 1. Xu Jun vs N Kalesis |
| 1-0 | 28 |
1993 |
Biel izt | E32 Nimzo-Indian, Classical |
| 2. Topalov vs N Kalesis |
| 1-0 | 50 |
1993 |
Biel izt | B48 Sicilian, Taimanov Variation |
| 3. Wojtkiewicz vs N Kalesis |
| 1-0 | 22 |
1993 |
Komotini GP | A15 English |
| 4. A Frolov vs N Kalesis |
| 1-0 | 40 |
1993 |
Biel izt | B48 Sicilian, Taimanov Variation |
| 5. Kotronias vs N Kalesis |
| 1-0 | 31 |
1994 |
Karditsa (Greece) | C42 Petrov Defense |
| 6. T Gelashvili vs N Kalesis |
| 1-0 | 47 |
1996 |
Ermoupoli | B21 Sicilian, 2.f4 and 2.d4 |
| 7. T Gelashvili vs N Kalesis |
| 1-0 | 54 |
1997 |
Ikaros 1st | B54 Sicilian |
| 8. N Kalesis vs Tringov |
| 1-0 | 41 |
1997 |
Ano Liosia op | E91 King's Indian |
| 9. I Fambas vs N Kalesis |
| 1-0 | 52 |
2001 |
9th Open | A46 Queen's Pawn Game |
| 10. Barsov vs N Kalesis |
| 1-0 | 52 |
2001 |
3rd Open | D38 Queen's Gambit Declined, Ragozin Variation |
| 11. N Kalesis vs G Nikolaou |
| 1-0 | 48 |
2001 |
3rd Open | E92 King's Indian |
| 12. N Kalesis vs A Mastrovasilis |
| 1-0 | 53 |
2001 |
3rd Open | D31 Queen's Gambit Declined |
| 13. Kotronias vs N Kalesis |
| 1-0 | 45 |
2001 |
3rd Open | B42 Sicilian, Kan |
| 14. N Kalesis vs P Potapov |
 | 1-0 | 21 |
2001 |
3rd Open | A80 Dutch |
| 15. N Kalesis vs K Koliopoulos |
| 1-0 | 48 |
2006 |
Acropolis Tournament | E92 King's Indian |
| 16. M Al Sayed vs N Kalesis |
| 1-0 | 52 |
2006 |
Acropolis Tournament | A15 English |
| 17. N Kalesis vs M Al-Modiahki |
| 1-0 | 67 |
2006 |
Acropolis Tournament | E38 Nimzo-Indian, Classical, 4...c5 |
| 18. N Kalesis vs A Gogolis |
| 1-0 | 30 |
2006 |
Acropolis Tournament | D10 Queen's Gambit Declined Slav |
| 19. N Kalesis vs A Dounis |
| 1-0 | 42 |
2006 |
Acropolis Tournament | D91 Grunfeld, 5.Bg5 |
| 20. F Peralta vs N Kalesis |
| 1-0 | 24 |
2006 |
Acropolis Tournament | D36 Queen's Gambit Declined, Exchange, Positional line, 6.Qc2 |
| 21. B Esen vs N Kalesis |
| 1-0 | 26 |
2006 |
Acropolis Tournament | E11 Bogo-Indian Defense |
